Update phpunit.yml

Author: andrey-helldar

.github/workflows/phpunit.yml

@@ -9,7 +9,7 @@ jobs:
         strategy:
             fail-fast: true
             matrix:
-                php: [ "8.2", "8.3" ]
+                php: [ "8.2", "8.3", "8.4" ]
                 laravel: [ "10.0", "11.0" ]
 
         name: PHP ${{ matrix.php }}, Laravel ${{ matrix.laravel }}